Boiler-furnace.



2 SHEETS-SHEET 1.

'y APPLICATION FILED JAN. 7, 1902.

No Mnnx..

No. 730,409. 'PATENTED JUNE 9,1903.

, SMITH. 50mm PUR-NACE, IPPLITIN FILED JLN. 7, 1902- 10 NOBEL. ZSUERTE-infirm 2.

a mm1 Patented vJune 9, 1903.

PATENT OFFICE.

JACOB SMITH, OF DES MOINES, IOWA.

BOlLER-FURNACE.

SPECIFICATION forming part of Letters Patent No. 730,409, dated J une 9,1903.

Application filed January 7, 1902. Serialll'o. 88,742. (No model.)

T0 ai?, whom, it' may concern.'

Be it known that I, JACOB SMITH, a citizen of the United States,residing at Des Moines, in the county-of Polk and State of Iowa, haveinvented a new and useful Boiler-Furnace, of which the following is aspecification.

My object is to prevent the waste of fuel and annoyances incident to theescape of soot and black smoke from boiler-furnaces by producing anenlarged combustion-chamber to increase the water-heating surface of aboiler by means of boiler-sections adapted to serve as walls of thecombustion-chamber and the fuel-chamber.

Further objects are to combine boilersections with a brick Wall to aidin supporting a tubular boiler, to protect boiler-fines froinf beingdamaged by heat, and to feed fuel through a hopper fixed in aboiler-section in such a manner that the fuel will be. heated on top ofthe nre-chamber before it is dropped into the nre-chamber.

My invention consists in the construction, arrangement, and combinationof parts, as hereinafterset forth,p0inted out in my claims, andillustrated in the accompanying drawings, in whichy Figure 1 is a sideelevation of my furnace, partly in section, and shows the forms andrelative positions of diiferentparts. Fig. 2 is a vertical transversesectional view on the line a; m of Fig. l and shows how the main andcylinder portion of the boiler is connected with and supported by theboiler-sections that constitute the side walls of the combus'tion-chamber.

The letter-A designates the foundation upon which parallel side Walls A2are built with brick. f

A3 is the bridge-wall.

B and B2 are flat metal plates connected by means of angle-plates B3 attheir tops and bottoms to produce boiler-sections adapted to serve asside Walls for supporting a cylindrical tubular boiler C of common formto extend beyond the cylindrical boiler to serve as side wallsfor thefurnace. The inner plates B2 extend down inside of the brick walls A2 torest upon the foundation A, as shown in Fig. 2, and in combination withthe brick Wall aid in supporting the tubular boiler.

The .rear ends of the plates B and B2 are connected by plates D and D2,as required to produce a boiler-section at the rear end of thecombustion-chamber to communicate with the mating parallel walls andboiler-sections Y that communicate with the cylindrical boiler through aplurality of tubes F, fixed in the tops of the boiler-sections andl thesides of the cylindrical boiler, as shown in Fig. 2, or in any suitableway and in sucha manner that lime and other foreign substances in thewater will be precipitated in the upright boilersections and preventfouling the main boiler at their tops.V Angle-bars H, fixed to `thesides of the cylindrical boiler, rest upon the angle-plates B3 and serveas brackets for supporting the boiler C in the top of the largecombustion-chamber that extends down to the foundation A.

f- J is the metal plate and front of the fur-v nace fixed to the frontends of the plates B and Bfiand to aboiler-section J 2, fixed to its topto communicate with the parallel upright boiler-sections. The top of thefurnace or fuel-chamber is thus prevented from being damaged by intenseheat to which it is subjected and also adapted for advantageouslycombining therewith means for supporting, beating, and feeding fuel tothe furnace, as

shown in Fig. l or in any suitable way.

the kboiler-sections that serve as awall for the largecombustion-chamber aids in maintain- .ing a high degree of heat in thecombustionchamber to materially aid in `promoting the combustion of allvaluable products of combustion liberated by fire in the fuel-chamber,as required to prevent the formation and escape of black smoke and soot,the fouling of IOO the boiler tubes, and the annoyances and wasteincident to the passage of black smoke and soot through thecombustion-chamber.

Having thus described the construction, purpose, and operation of myinvention, its practical utility will be obvious to persons familiarwith the art 'to which it pertains, and

What I claim as new, and desire to secure by Letters Patent, is-

l. In aboiler-furnace, aboiler-section made of parallel plates and theinner plates extended downward to rest upon a foundation and forward toline a furnace, in combination with a bridge-wall, a grate and a brickwall extended from the foundation to the bottom of the boiler-section,for the purposes stated.

2. In a boilerfurnace, parallel boiler-sections made of plate metal andextensions at their front ends and the extensions connected at theirtops by a boiler-section provided with an aperture adapting it forcombining means therewith for heating and feeding fuel into the furnace,in combination with the front wall of a fuel-chamber and a bridge-walland a cylindrical boiler supported upon the tops of the parallelboiler-sections, for the purposes stated.

3. In a boiler-furnace parallel brick walls extended upward from afoundation-bottom, metal plates resting on the foundation and extendedup inside of the brick walls, metal plates resting upon the tops of theparallel brick walls and extended parallel with the plates on the insideof said plates and connected therewith at their bottoms and tops bymeans of angle-plates to produce boiler-sections adapted to serve asupright walls of a combustion-chamber and to support a horizontalboiler, extensions at the front'ends of the parallel walls and aboiler-section fixed on top of said extensions and provided with anaperture and adapted for combinin g means therewith for heating andfeeding fuel into the furnace, arranged and combined as shown anddescribed for the purposes stated.

4. In a boiler-furnace parallel brick walls extended upward from afoundation-bottom metal plates resting on the foundation and extended upinside of the brick walls, metal plates resting upon the tops of theparallel brick walls vand extended parallel with the plates on theinside of said plates and connected therewith at their bottoms and topsby means of angle-plates to produce boiler-sections adapted to serve asupright walls of a combustion-chamber and to support a horizontalboiler, a bridge-wall between the front portions of the two uprightparallel boiler-sections, a metal front connected with the front ends ofsaid upright boiler-sections and a grate extending from the bridge-wallto the furnace front, arranged and combined as shown and described forthe purposes stated.

5. In a boiler-furnace, a bridge-wall, two parallel upright boilersections connected with the ends of the bridge-wall and the front wallof the furnace, a boiler-section extending horizontally rearward fromthe furnacefront anda hopper fixed in said horizontal boiler-section,arranged and combined to operate in the manner set forth for thepurposes Stated. A

6.v A boiler-furnace comprising parallel brick walls, boiler-sectionsfixed on top of the parallel'walls and their inner plates extended downon the insides of the walls, a tubular boiler xed on top of the parallelboiler-sections,tubes extending from the parallel boilersections intothe tubular boiler, a boiler-section connected with the rear ends of theparallel boiler-sections, extensions of the parallel walls and theparallel boiler-sections,a bridgewall, a grate, a f urnace-front and aboiler-section on top of the said extensions adapted for supporting ahopper for heat-ing and feeding fuel to the furnace, arranged andcombined to operate in the manner set forth for the purposes stated.

JACOB SMITH.

Witnesses: Y

REUBEN G. ORWIG, THOMAS G. ORWIG.

